Reliable power electronics and power supply for 75 years!

We are celebrating our company anniversary! Gustav Klein has been supplying power supply devices and systems for 75 years. The know-how and experience of our qualified employees offer you reliability and competence in solving your specific requirements. The continuous development of our product portfolios will ensure that truly secure systems will continue to be available in the future.

High power test systems

NEW: with up to 1200 V 1200 A //
1500 V 800 A // 1500 V 1000 A

Join our team!

Help shape the reliable electrification of our society

Testing and simulation

For electromobility, development and industry

To test batteries, fuel cells, e-drive trains and other components, we offer uni- and bidirectional power supply solutions. A clear design, reliable components and easy maintenance characterize our source/sink systems.

  • Li-ion batteries
  • Batteries
  • Fuel cells
  • Inverter
To our products

Highly available power supply

For industry, hospital and railway

For more than seven decades, Gustav Klein has been your reliable partner for a safe power supply – from consulting and planning to implementation, commissioning and service. Maximum service life and ease of servicing are the hallmarks of our systems.

  • Stationary railway supply
  • Industry solution
  • Power plants
  • Infrastructure
  • Operating theatres in hospitals
To our products

Technology, competence, reliability, quality & innovation

Your partner for power supply - worldwide.

Technology, competence, reliability, quality & innovation

Always stay up to date

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We are a long-term partner

Our exclusive service

We do not only want to deliver our systems, but also to accompany them. With our extensive range of services, we are always happy to assist you and offer you tailor-made solutions specifically to your requirements.

More service

Maintenance

We offer customised maintenance contracts and maintenance concepts for your systems.

System replacement

We help you renew your power supply.

24h hotline

We are available for you around the clock.

Material exchange

Wear parts or ageing components should be replaced at certain intervals.

News, press and more

We are moving forward - more
News from Gustav Klein

  • News

75th Anniversary of HANNOVER MESSE

75 years at the HANNOVER MESSE – an impressive tradition for Gustav Klein. But why is the world’s leading trade fair of the industry so important for the company, and what role does the Hydrogen + Fuel Cells EUROPE division play? A conversation with Bernhard Rill, an experienced trade fair expert and for over 30 […]
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  • News

Gustav Klein @ Allgäuer Wirtschaftsmagazin

We are delighted that Gustav Klein is featured in the latest edition of the Allgäuer Wirtschaftsmagazin! Our Vice President, Bernhard Rill, recently had the opportunity to speak with editors Andrea Scheungrab and Mahi Kola about our company and the latest developments in the energy sector. The article provides fascinating insights into our work as a […]
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  • News

A fitting farewell to Mr. Günther Stensitzki

On December 20, we duly celebrated the departure of Mr. Günther Stensitzki, who is taking his well-deserved retirement after 18 years. All colleagues from Schongau and Inzing gathered in Schongau to honor this special moment. At the beginning, Eva Stensitzki gave an emotional speech in which she thanked her dad from the bottom of her […]
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More news

Join our team!

For over 75 years, the medium-sized family business Gustav Klein has been developing and manufacturing reliable solutions in the field of power supply as well as test / simulation systems for e-mobility in Schongau and Inzing.

Join our team